I have just upgraded my Domino 9.0.1.3 HF515 JVM(SR16 FP4) Win 64 Server with the latest Fix pack 4. This Server is also running the latest Traveler 9015.
From the 'More Info' page, I believe this should have the JVM(SR16 FP4) built in.
At the end of the insatallation I got a message saying JVM not update (which I was not surprised by as I was already at SR16 FP4).
While doing my post install check Domino was running fine, Traveler was running fine.
But when I checked the JVM it had been reverted back to "pwa6460sr16fp2ifix-20141203_1 (SR16 FP2)" !!
I have now re-applied 9.0.1.3_Server_w64_JVM_Patch_20150506_083936 to get back to JVM (SR16 FP4)
I hope this helps someone
Ian